* {
    margin: 0;
    padding: 0;
}

body {
    overflow: hidden;
}

#bagr {
    width: 100%;
    height: 100%;
    position: fixed;
    z-index: -1;
}

#bag img {
    width: 100%;
    height: 100%;
    opacity: 0.6;
    filter: alpha(opacity=60);

}

.box {
    width: 600px;
    height: 600px;
    margin: 0 20%;
}

.box #canvas {
    border: 3px solid #4a4a4a;
}

.btn {
    width: 24%;
    position: fixed;
    top: 150px;
    right: 150px;
}

.btn div {
    width: 150px;
    height: 36px;
    line-height: 36px;
    border-radius: 5px;
    margin: 30px auto;
    text-align: center;
    font-size: 20px;
    font-weight: 800;
    cursor: pointer;
    color: #fff;
}

.btn div:active {
    font-size: 18px;
}

.btn #start {
    background-color: #5cb85c;
}

.btn #replay {
    background-color: #5bc0de;
}

.score {
    width: 24%;
    position: fixed;
    top: 50px;
    right: 150px;
    font-size: 30px;
}

.game_desc {
    position: fixed;
    bottom: 100px;
    right: 100px;
    font-size: 18px;
}